The main purpose of this research is to suggest an alternative idea about management system for military mental health through analysis for medical theory and policy. In the 21st century, the way of war was transferred from conventional military power to high technology military power after 9ㆍ11 terror in the United States. The field of military mental health in Korea has not been remarkably developed because it was not considered important policy. But there are some military case that are related to the mental health of soldiers on which they are suffered from various traumas in recently. For example, R.O.K.S Cheonan was sunk in the Yellow Sea in 2010 and 58 survivors are complaining of pain in the mental while at military hospital. Therefore, the government of Korea and Ministry of National Defense should established a substantial policy for management of military mental health. This research suggest an action plan for developing the field of mental health as below, First, the identity of mental health should be established in the military field. Second, we will have a specialist facilities for military mental health and will be trying to recruit more professionals who was trained by the professional insititution of mental health. Finally, the military field and private sector should collaborate with each other throughout academic exchange, policy development as well as personnel exchange. In conclusion, the armed forces of South Korea, to beyond the Korean peninsula to ensure world peace and security, should have a lot of interest in the mental health field to drive the field's cutting-edge science and technology to leap instantly to the strong armed forces based on science and technology in the near future.